package com.heima.user.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.dtos.LoginDto;
import com.heima.model.user.pojos.ApUser;
import com.heima.user.mapper.ApUserMapper;
import com.heima.user.service.ApUserService;
import com.heima.utils.common.AppJwtUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.DigestUtils;

import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;

/**
 * <p>
 * APP用户信息表 服务实现类
 * </p>
 *
 * @author jojoc
 */
@Slf4j
@Service
@Transactional
public class ApUserServiceImpl extends ServiceImpl<ApUserMapper, ApUser> implements ApUserService {

    /**
     * app端登录
     *
     * @param dto
     * @return
     */
    @Override
    public ResponseResult login(LoginDto dto) {

        if(StringUtils.isNotEmpty(dto.getPhone()) && StringUtils.isNotEmpty(dto.getPassword())){
            // 用户登录
            ApUser apUser = getOne(Wrappers.<ApUser>lambdaQuery().eq(ApUser::getPhone, dto.getPhone()));
            if(apUser == null){
                //数据不存在
                return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST);
            }
            String salt = apUser.getSalt();
            String password = dto.getPassword();
            String pwd = DigestUtils.md5DigestAsHex((salt+password).getBytes(StandardCharsets.UTF_8));
            if(!pwd.equals(apUser.getPassword())){
                //密码不正确
                return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
            }
            //返回数据 jwt
            Map<String,Object> map = new HashMap<>();
            String token = AppJwtUtil.getToken((long) apUser.getId());
            map.put("token",token);
            apUser.setPassword("");
            apUser.setSalt("");
            map.put("apUser",apUser);
            return ResponseResult.okResult(map);
        }else {
            //游客登陆
            Map<String,Object> map = new HashMap<>();
            String token = AppJwtUtil.getToken(0l);
            map.put("token",token);
            return ResponseResult.okResult(map);
        }
    }
}
